探索潜在的转录因子及其基于非对称共变量自然向量编码方法和机器学习算法的调控关系
Guoqing Hu1, Mengmeng Sang2, Hao Wang3,4
1Hetao Institute of Mathematics and Interdisciplinary Sciences (HIMIS), Shenzhen 518000, Guangdong, P.R. China.
Briefings in bioinformatics
|February 9, 2026
概括
我们开发了ACNVE-K,这是一个新的计算框架,可以准确预测转录因子 (TF) 点基因及其调节方向. 这种方法提高了对精准医学和基因组学基因调节的理解.
科学领域:
- 基因组学就是基因组学.
- 计算生物学 计算生物学
- 生物信息学是一种生物信息学.
背景情况:
- 转录因子 (TFs) 控制基因表达,但预测它们的目标和监管方向仍然具有挑战性.
- 现有的计算方法在解读复杂的TF-target关系时缺乏准确性.
研究的目的:
- 引入ACNVE-K,这是一个用于准确TF目标预测和监管方向分类的整合框架.
- 通过机器学习提高对转录调节的理解.
主要方法:
- ACNVE-K 结合了 k-mer 分解和非对称共变量自然向量编码,从氨基酸序列创建特征向量.
- 使用极端梯度增强 (XGBoost),梯度增强 (GB) 和随机森林 (RF) 算法构建了预测模型.
主要成果:
- XGBoost在TF识别,目标基因推断和人类和小鼠基因组的监管方向分类方面表现出卓越的预测性能.
- 一个5mer配置提供了功能表示和计算效率之间的最佳平衡.
结论:
- ACNVE-K为解码转录调节提供了一个强大的和可解释的框架.
- 这种方法对精准医学,调控基因组学和基因网络重建有重大影响.
更多相关视频
06:19Constructing and Visualizing Models using Mime-based Machine-learning Framework
Published on: July 22, 2025
2.6K
06:22Machine Learning-Based Cough Tone Classification: Diagnostic Exploration of Chronic Obstructive Pulmonary Disease and Respiratory Tract Infections
Published on: September 19, 2025
528
相关概念视频
Transcription Factors
82.9K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
82.9K
Transcription Elongation Factors
14.1K
Transcription elongation is a dynamic process that alters depending upon the sequence heterogeneity of the DNA being transcribed. Hence, it is not surprising that the elongation complex's composition also varies along the way while transcribing a gene.
The transcription elongation is regulated via pausing of RNA polymerase on several occasions during transcription. In bacteria, these halts are necessary because the transcription of DNA into mRNA is coupled to the translation of that mRNA...
The transcription elongation is regulated via pausing of RNA polymerase on several occasions during transcription. In bacteria, these halts are necessary because the transcription of DNA into mRNA is coupled to the translation of that mRNA...
14.1K
Transcription Elongation Factors
4.8K
4.8K
General Transcription Factors
7.1K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
7.1K
Cis-regulatory Sequences
11.9K
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
11.9K
Eukaryotic Transcription Inhibitors
11.0K
Certain biochemical processes, such as embryonic development and cell growth regulation, depend on the repression of specific genes. DNA binding proteins known as eukaryotic transcription inhibitors regulate the repression of gene expression in eukaryotes. The presence of these inhibitors at the required location and time in the cell is triggered by the presence of hormones and additional signals from other cells.
Eukaryotic transcription inhibitors usually contain two distinct domains, a...
Eukaryotic transcription inhibitors usually contain two distinct domains, a...
11.0K
